Cable Rating Service: CRATER

CRATER (Cable Rater) is a sophisticated Cable Ratings tool which enables current ratings of a wide range of thermally interdependent circuits to be calculated. CRATER was designed and developed by EA Technology with the support of the GB Distribution Network Operators (DNOs). It is the approved cable rating tool of the GB DNOs and it’s evolution continues to date.

EA Technology provides an independent thermal Cable Rating calculation service, using CRATER, to a multitude of customers, ranging from cable network designers to cable network service providers, throughout the UK and overseas. Having the thermal rating of cables circuits calculated using CRATER provides reassurance and acceptance for any work undertaken which may be integrated into cable network systems, especially those owned and operated by GB DNOs.

Benefits

CRATER ratings are used daily by the GB DNOs: they have also been used to inform GB DNO cable policy.

Features

Includes all LV through to EHV (400kV) single and 3–core cable types currently used by the GB DNOs; Polymeric Cables Paper Cables, Oil-filled Cables and Gas Pressure Cables; totalling over 1100 cables.

Single and grouped cable circuits can consist of different cable types; conductor size; various cable and duct configurations, with user defined duct sizes and types; wet & dry soil conditions; thermal backfill; open air; laid direct; in tunnels. Each circuit can also be assigned a different load curve.